Tool turret



u Jan. l, 1924 1,479,526

l J. C: WILKIE TooL TURRET Filed June 7. 1922 2 Sheets-Sheet l Ezo'z. jams anmie lengine lathe.

Patented danni., 1924,

PATET orsi JULIUS C. WILKIE, OF WINONA, MINNESOTA.

Application filed June 7,

To all whom t may concern:

Be it known that I, JULIUs C. VVILnIn, a citizen of the United States, residing at IlVinona, in the county of Winona and State of Minnesota, have invented certain new and useful Improvements in Tool Turrets;

`and I do hereby declare the following to be 'It is an object of the invention to provide Aa turret that may be made as a separate article of manufacture, the turret to be used in place of the tool post forming part of the ordinary engine lathe. Y

The invention is embodied in a device having means adapted to be inserted into the tool post. slot of the conventional tool carriage, said' means including a post about which the turret may turn. The post is provided with a central bore through which is passed a stem for operating the turret locking means.

The above and other novel features of the invention will be fully described in connection with thel two sheets of drawings forming part of this specification, and then 'set forth in the appended claims.

In the drawings which Iillustrate the preferred form ofthe invention,

Figure 1' shows the improved turret attached to the upper carriageof a compound tool carriageof an engine lathe;

Fig.'2 is arplan view of the turret; Y

Fig.V 3 is a section on line 3-3 of Fig. 1;

Fig. 4L is a vertical section on limsi-4 of Fig. 2; and

Fig. 5 is a vertical section on line 5#5 of F ig. 2.

In the drawings, 10V indicates the longit-udinallyvmovable main carriage of an `engine lathe l5 11 the transversely movable tool carriage; 12v the upper carriage which is rotatable on the carriage 11 -about a vertical axis; 11 the means for movingthe carriage 11; and 12 the means for moving the car- TOOL TURRET.

1922; Serial No. 566,653.

riage 12. The above construction is conventional and forms merely the setting of my invention.

The tool-holding part of the turret is indicated at 13 and as shown may be provided with suitable bores and slots for the reception of various cutting tools. -Thus there is a boring tool socket a at each side of the turret; inclined polygonal corner sockets b and inclined side sockets o (see Fig. 3). The set screws fz secure tools within the bores a, and the set screw b secures tools within either the side sockets or corner sockets as will be readily understood.

The turret 13 is provided with a vertical bore and the lower'fface or bottom of the turret has a countersink 14 which is concentric with said bore. In the bottom face of the turret are one or more slots 15 for a purpose hereinafter mentioned. The turret is adapted to be rotatably mounted ona post 16 which has an enlarged body portion 17 which fits loose in the counterbore 14C. This body, beginning at a point below its shoulder, is cut away on two sides toform a flat wing-like extension 18. Attached to this wing-like extension is a laterally or radially extending plate 19. Any suitable means for securing the two members 18 and 19 may bev employed, as for example, pins or rivets `20 passing through said members. The plate 19 is preferably slotted intermediate its ends to receive the said extension 18. vThis plate 19 is adapted to enter the slot 12LL of the tool carriage 12 as shown in Fig. 1. In order to take up play of the plate 19 in the slot 12L suitable take-up screws 19 are provided in the ends of the plate, it being understood that the beveled ends of the screws will engage the bottom of the slot to raise the plate up into contact with the under face of the slot.

Mounted on the enlarged portion 17 of the post 16 is a key plate 21. This plate is slidably mounted on the wing-like extension V18 of the post and like the plate 19, is preferably slotted intermediate its endsk to receive said extension. Inserted between the plate 19 and the key plate 21 are coil springs 22'which serve to press the key plate upwardly against the bottom face of the turret 'a cross pin 25 projecting through 13. As already pointed out, the bottoni tace ot' the turret is provided with a slot l5, there being a plurality ot these slots. ln the drawings only two such slots are shown, they being at right angles to each other; but the invention is not limited to the number of such slots. rlhe key plate 2l is adapted to enter one ot the slots and thus lock the turret against rotation ot the post 16.

Novel means are provided for displacing` the key plate 2l. from engagement with the key slot l5. r)The post i6 is provided with a central bore i6 extending therethrough. Adjacent the lower end of the post the extension L8 is a slot 25. ldlithin this bore is mounted a stem 2d having at its lower end sot 1s of the key A- lhen and overlying` the two slot-we plate 2i as clearly shown L., itis desired v to disengage the key plate 2l from theV key slot l5, the stem 24 is depressed and the key plate'is moved toward the plate 19 against the tension ot the springs lt will be understood that thev springs 22 norfmally tend to maintain thekey plate 2l within the key slot 15er against the bottoni tace of the turret. By reiterence to Fig. i, it will be seen that the key plate 2l is ot suiiicient depth Vto extend between: the vertical walls ot' the tool post slot 12a. This arrangement insures that the turret is positively locked against rotation with respect to the carriage l2. p

The upper end of the pest 16 is threaded to receive a locking nut 26 whereby the turret can be clamped to the tool carriage l2 as will be' readily understood. A collar 27 is preferably provided between the nut and the turret; different height collars may be provided as may be needed to secure proper adjustment due to different sizes of tool post Slots. Y

lt' desired, a telt washer 28 may be vided at theV shoulder above portion l facilitate lubrication ot the parts.

rlhe above described turret provides an attachment which may be readily used in connection with engine lathe having the conventional T-shaped slot Jo'r receiving the tool post. In assembling the invention into an engine lathe, it is merely necessary to remove the tool post and to bring the turret into place by'sliding the plate i9 'into the tool post slot. The slacktake-up screws 19 are then adjusted to bring the plate into engagement with the under side of the slot. lt may be noted that after the plate 19 has been thus adjusted it is etl'ectually held against sliding movement in theslot. ldhen the operator desires to turn the turret it is merely necessary to first releaseA the nut 26 somewhat and then to press downwardly on the stem 24 to displace the key plate 21 trom the key slot 15. Nhile the key pla-te is held in depressed position, the turret is rotated p to to the desired position whereupon the stein is released with the result that the key plate 2l is 'forced int-o engagement with the bottom tace of the turret by the springs 22. It the key slot and key plate are not exactly aligned, it is merely necessary to rotate the turret until such alignment occurs whereupon the key pla-te 21 will snap into place as will be readily understood.

While l have described the invention with considera-ble particularity of detail, it is to be understood that no limitations are intended except as may be imposed by the appended claims.

What l claim is:

l. rlhe combination ot a tool turret having a vertical bore therethrough, a hollow post mounted in and extending through said bore, means projecting radially from the bottom of the post adapted to be entered into the slot of a tool carriage, means for locking said radially projecting means in said slot,

means at the other end ofthe post for mounted in and extending through saidbore, means proj eating` radially from the bottom of the post adapted'tov be entered into the slot of a tool carriage, means at the other end of the post for drawing said means toward the bottom ot the turret, means forY preventing relative rotation between the turret and said projecting means, said locking means comprising a key slidably mounted on the post adjacent said radially projecting means, spring means between the projecting means and key, and a key-operating stem within the post, and a ulcrum connection between said stem and key.

3. rlhe combination of a tool turret havin a vertical bore therethrough, a'hollow post` mounted in and extending through said bore, means projectingr radially from the bot toniv of the post adapted to beentered Vinto the slot ot a tool carriage, means at the' other end or" thev post for drawing saidv neaiis toward the bottom oi the turret post comprising a key plate non-rotatively mounted'on the post between the bottom of the turret and said projecting means, said plate having means cooperating with the plate to prevent relative rotation therebetween, and means mounted in the post for displacing the key plate from cooperative engagement' with the turret.

4. 'lhe combination of a hollow post having a transversely-extending head at one end,

a stem in said post and projecting from the lon said post, said member having means for open end thereof, a pin and slot connection locking` engagement with ther key plate. f between the stem and the post adjacent the 6. The combinationl as in claim 4, and 10 head thereof, the pin being carried by the cushion means tending to separate the key 5 stem, a key plate sldably mounted on the plate and head.

post between the pin and head. In testimony whereof I alix my signature.

5. The combination as in claim 4, and a Y tool-supporting member rotatably mounted JULIUS C. WILIxIE. 

